Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12394/8507
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dc.contributor.authorMorales, Mariano S.es_ES
dc.contributor.authorCook, Edward R.es_ES
dc.contributor.authorBarichivich, Jonathanes_ES
dc.contributor.authorChristie, Duncan A.es_ES
dc.contributor.authorVillalba, Ricardoes_ES
dc.contributor.authorLeQuesne, Carloses_ES
dc.contributor.authorSrur, Ana M.es_ES
dc.contributor.authorFerrero, M. Eugeniaes_ES
dc.contributor.authorGonzález-Reyes, Álvaroes_ES
dc.contributor.authorCouvreux, Fleures_ES
dc.contributor.authorMatskovsky, Vladimires_ES
dc.contributor.authorAravena, Juan C.es_ES
dc.contributor.authorLara, Antonioes_ES
dc.contributor.authorMundo, Ignacio A.es_ES
dc.contributor.authorRojas, Facundoes_ES
dc.contributor.authorPrieto, María R.es_ES
dc.contributor.authorSmerdon, Jason E.es_ES
dc.contributor.authorBianchi, Lucas O.es_ES
dc.contributor.authorMasiokas, Mariano H.es_ES
dc.contributor.authorUrrutia-Jalabert, Rocioes_ES
dc.contributor.authorRodriguez-Catón, Milagroses_ES
dc.contributor.authorMuñoz, Ariel A.es_ES
dc.contributor.authorRojas-Badilla, Moiseses_ES
dc.contributor.authorAlvarez, Claudioes_ES
dc.contributor.authorLopez, Lidioes_ES
dc.contributor.authorLuckman, Brian H.es_ES
dc.contributor.authorLister, Davides_ES
dc.contributor.authorHarris, Ianes_ES
dc.contributor.authorJones, Philip D.es_ES
dc.contributor.authorWilliams, A. Parkes_ES
dc.contributor.authorVelazquez, Gonzaloes_ES
dc.contributor.authorAliste, Diegoes_ES
dc.contributor.authorAguilera-Betti, Isabellaes_ES
dc.contributor.authorMarcotti, Eugeniaes_ES
dc.contributor.authorFlores, Felipees_ES
dc.contributor.authorMuñoz, Tomáses_ES
dc.contributor.authorCuq, Emilioes_ES
dc.contributor.authorBoninsegna, José A.es_ES
dc.date.accessioned2021-02-25T20:21:47Z-
dc.date.available2021-02-25T20:21:47Z-
dc.date.issued2020-
dc.identifier.citationMorales, M, Cook, E., Barichivich, J., Christie, D., Villalba, R., LeQuesne, C., Srur, A., Ferrero, M., González, A., Couvreux, F., Matskovsky, V., Aravena, J., Lara, A., Mundo, I., Rojas, F., Prieto, M., Smerdon, J., Bianchi, L., Masiokas, M., Urrutia, R., Rodriguez, M., Muñoz, A., Rojas, M., Alvarez, C., Lopez, L., Luckman, B., Lister, D., Harris, I., Jones, P., Williams, A., Velazquez, G., Aliste, D., Aguilera, I., Marcotti, E., Flores, F., Muñoz, T., Cuq, E., Boninsegna, J. (2020). Six hundred years of South American tree rings reveal an increase in severe hydroclimatic events since mid-20th century. Proceedings of The National Academy Of Sciences Of The United States of America, 1(1), https://doi.org/10.1073/pnas.2002411117es_ES
dc.identifier.urihttps://hdl.handle.net/20.500.12394/8507-
dc.description.abstractSouth American (SA) societies are highly vulnerable to droughts and pluvials, but lack of long-term climate observations severely limits our understanding of the global processes driving climatic variability in the region. The number and quality of SA climate-sensitive tree ring chronologies have significantly increased in recent decades, now providing a robust network of 286 records for characterizing hydroclimate variability since 1400 CE. We combine this network with a self-calibrated Palmer Drought Severity Index (scPDSI) dataset to derive the South American Drought Atlas (SADA) over the continent south of 12°S. The gridded annual reconstruction of austral summer scPDSI is the most spatially complete estimate of SA hydroclimate to date, and well matches past historical dry/wet events. Relating the SADA to the Australia–New Zealand Drought Atlas, sea surface temperatures and atmospheric pressure fields, we determine that the El Niño–Southern Oscillation (ENSO) and the Southern Annular Mode (SAM) are strongly associated with spatially extended droughts and pluvials over the SADA domain during the past several centuries. SADA also exhibits more extended severe droughts and extreme pluvials since the mid-20th century. Extensive droughts are consistent with the observed 20th-century trend toward positive SAM anomalies concomitant with the weakening of midlatitude Westerlies, while low-level moisture transport intensified by global warming has favored extreme rainfall across the subtropics. The SADA thus provides a long-term context for observed hydroclimatic changes and for 21st-century Intergovernmental Panel on Climate Change (IPCC) projections that suggest SA will experience more frequent/severe droughts and rainfall events as a consequence of increasing greenhouse gas emissions.es_ES
dc.formatapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherUniversidad Continentales_ES
dc.relationhttps://www.pnas.org/content/117/29/16816es_ES
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/es_ES
dc.subjectCambio climáticoes_ES
dc.subjectEfecto invernaderoes_ES
dc.titleSix hundred years of South American tree rings reveal an increase in severe hydroclimatic events since mid-20th centuryes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.description.notePara acceder al artículo de su interés, puede solicitarlo a bibliotecariovirtual@continental.edu.pe. Por favor, comunicarse con su correo institucionales_ES
dc.rights.accessRightsRestringidoes_ES
dc.identifier.doihttps://doi.org/10.1073/pnas.2002411117es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.02.02es_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
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